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Influence of cellulose ethers on hydration products of portland cement

  • Baoguo Ma (马保国)
  • Zhihua Ou (欧志华)
  • Shouwei Jian
  • Rulin Xu
Article

Abstract

Cellulose ethers are widely used to mortar formulations, and it is significant to understand the interaction between cellulose ethers and cement pastes. FT-IR spectra, thermal analysis and SEM are used to investigate hydration products in the cement pastes modified by HEMC and HPMC in this article. The results show that the hydration products in modified cement pastes were finally identical with those in the unmodified cement paste, but the major hydration products, such as CH (calcium hydroxide), ettringite and C-S-H, appeared later in the modified cement pastes than in the unmodified cement paste. The cellulose ethers decrease the outer products and increase inner products of C-S-H gels. Compared to unmodified cement pastes, no new products are found in the modified cement pastes in the present experiment. The HEMC and HPMC investigation shows almost the same influence on the hydration products of Portland cement.

Key words

cellulose ethers hydration product portland cement 

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Copyright information

© Wuhan University of Technology and Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • Baoguo Ma (马保国)
    • 1
  • Zhihua Ou (欧志华)
    • 1
  • Shouwei Jian
    • 1
  • Rulin Xu
    • 1
  1. 1.Key Laboratory for Silicate Materials Science and Engineering of Ministry of EducationWuhan University of TechnologyWuhanChina

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